Microimpedance - Localized material analysis

被引:32
作者
Lohrengel, MM [1 ]
Heiroth, S [1 ]
Kluger, K [1 ]
Pilaski, M [1 ]
Walther, B [1 ]
机构
[1] Univ Dusseldorf, Inst Phys Chem, D-40225 Dusseldorf, Germany
关键词
microelectrochemistry; microcell; microreactor; capillary; microimpedance;
D O I
10.1016/j.electacta.2005.02.120
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 [应用化学];
摘要
Many technically relevant materials are non-homogeneous in structure. Their investigation requires a locally resolved surface analysis. An exact determination of the accessed area and a potentiostatic control in a three-electrode configuration are necessary. This becomes possible by capillary-based microcells which enable local impedance measurements and even impedance mapping of the surface. Different aspects and strategies of this microimpedance spectroscopy are presented and discussed, together with some examples. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1431 / 1436
页数:6
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